Google has published a security update newsletter from May 2021 and has also launched new updates on supported Pixel devices.
May 2021 Security Update Bulletin
The Android Security Bulletin for May 2021, which you can see here, describes a number of security vulnerabilities ranging in severity from moderate to critical. One of the most severe vulnerabilities in the Android Framework could allow a local malicious application to bypass user interaction requirements to gain additional permissions. There are also some issues with the Android Media Framework, the Android System, and some closed source components from vendors such as Qualcomm and MediaTek.
As we have seen in the past, many of the vulnerabilities discovered do not offer additional documentation to explain what is affected and how the fix solves the problem.
Pixel Update Newsletter / Functional Update
In addition to providing vulnerability information in the general Android security update newsletter, Google has also revealed the issues facing Pixel devices. The Pixel update newsletter highlights several moderate issues and appears to affect Android Kernel components, the Qualcomm camera-related component, and closed-source Qualcomm components.
The list this month is actually relatively small and they are all listed as moderate. Unlike last month, Google does not highlight any noticeable corrections, but we will update this post once the information becomes available. Last month, Google highlighted camera quality issues in certain third-party applications and performance optimizations for certain graphics-intensive applications and games.
Google says that the security update from May 2021
Pixel 3 (XL): RQ2A.210505.002
Pixel 3a (XL): RQ2A.210505.002
Pixel 4 (XL): RQ2A.210505.002
Pixel 4a: RQ2A.210505.002
Pixel 4a (5G): RQ2A.210505.003
Pixel 5: RQ2A.210505.003
Factory images of Pixel ||| Pixel OTA image